<template>
  <el-form ref="deptForm" :rules="rules" label-width="120px" :model="form">
    <el-form-item label="部门名称" prop="name">
      <el-input v-model="form.name" style="width:80%" placeholder="1-50个字符" />
    </el-form-item>
    <el-form-item label="部门编码" prop="code">
      <el-input v-model="form.code" style="width:80%" placeholder="1-50个字符" />
    </el-form-item>
    <el-form-item label="部门负责人" prop="manager">
      <el-select v-model="form.manager" style="width:80%" placeholder="请选择">
        <el-option
          v-for="item in list"
          :key="item.id"
          :value="item.username"
          :label="item.username"
        />
      </el-select>
    </el-form-item>
    <el-form-item label="部门介绍" prop="introduce">
      <el-input v-model="form.introduce" style="width:80%" placeholder="1-300个字符" type="textarea" :rows="3" />
    </el-form-item>
    <el-form-item>
      <el-button type="primary" size="small" @click="hSubmit">确定</el-button>
      <el-button size="small" @click="hCancel">取消</el-button>
    </el-form-item>
  </el-form>

</template>
<script>
import { getEmployeesSimple, addDepartments, getDepartmentsDetail, editDepartments } from '@/api/departments'
export default {
  props: {
    id: {
      type: String,
      required: true
    },
    isEdit: {
      type: Boolean,
      required: true
    },
    originList: {
      type: Array,
      required: true
    }
  },
  data() {
    // 自定义校验规则，注意不要写在data的return里
    const existCodeValid = (rule, value, callback) => {
      // 验证码中value看是否存在(针对于code)
      let existCodeList = this.originList.map(item => item.code)
      if (this.isEdit) {
        existCodeList = this.originList.filter(item => item.id !== this.id).map(item => item.code)
      }
      console.log(existCodeList, 'existCodeList')
      if (existCodeList.includes(value)) {
        callback(new Error(`部门编码：${value}已存在`))
      } else {
        // 不存在就可以正常操作
        callback()
      }
    }

    const existNameValid = (rule, value, callback) => {
      // 验证输入部门名称value在同级不能重复
      let existNameList = this.originList.filter(item => item.pid === this.id).map(item => item.name)// 找到有下一级的项
      console.log(existNameList, 'existNameList')

      if (this.isEdit) {
        const pid = this.originList.find(item => item.id === this.id).pid// 找到自己的pid
        console.log(pid, 'pid')
        const brothers = this.originList.filter(item => item.pid === pid)// 找到所有同名pid
        existNameList = brothers.filter(item => item.id !== this.id).map(item => item.name)// 过滤自己，留下存在的
      }

      if (existNameList.includes(value)) {
        callback(new Error(`部门名称：${value}已存在`))
      } else {
        callback()
      }
    }
    return {
      form: {
        name: '',
        code: '',
        manager: '',
        introduce: ''
      },
      list: [], // 保存的是部门负责人(下拉框)
      rules: {
        name: [
          { required: true, message: '请输入部门名称', trigger: 'blur' },
          { min: 1, max: 50, message: '请输入1-50的部门名称', trigger: 'blur' },
          { validator: existNameValid, trigger: 'blur' }

        ],
        code: [
          { required: true, message: '请输入部门编码', trigger: 'blur' },
          { min: 1, max: 50, message: '请输入1-50的部门编码', trigger: 'blur' },
          { validator: existCodeValid, trigger: 'blur' }
        ],
        manager: [
          { required: true, message: '请输入部门负责人', trigger: ['blur', 'change'] }
        ],
        introduce: [
          { required: true, message: '请输入部门介绍信息', trigger: 'blur' },
          { min: 1, max: 300, message: '请输入1-300的部门介绍信息', trigger: 'blur' }
        ]
      }
    }
  },
  /*   watch: {
    // 基本类型的侦听
    id: function(newVal, oldVal) {
      console.log(newVal, 'newVal')
      console.log(oldVal, 'oldVal')
      this.loadDepartmentDetail()
    }
  }, */
  // watch: {
  // // 复杂数据类型

  //   id: {
  //     // 立即加载
  //     immediate: true,
  //     handler: function(oldVal, newVal) {
  //       console.log(newVal, 'newVal')
  //       console.log(oldVal, 'oldVal')
  //     }
  //   }

  // },
  created() {
    this.loadEmployeesSimple()
    if (this.isEdit) {
      this.loadDepartmentDetail()// 当是点的编辑状态的时候我们调用显示列表详情的接口进行回显
    }
  },
  methods: {
    hSubmit() {
      this.$refs.deptForm.validate((valid) => {
        if (!valid) return
        this.isEdit ? this.doEdit() : this.onAdd()
      })
    },
    hCancel() {
      this.$emit('doClose')
    },
    // 部门负责人信息获取
    async loadEmployeesSimple() {
      const res = await getEmployeesSimple()
      this.list = res.data
      console.log(res)
    },
    // 新增部门
    async onAdd() {
      try {
        const res = await addDepartments({ ...this.form, pid: this.id })
        console.log(res, 'onAdd')
        // 子传父，关闭弹窗与刷新
        this.$emit('success')
      } catch (error) {
        console.log(error)
      }
    },
    // 部门详情
    async loadDepartmentDetail() {
      try {
        const res = await getDepartmentsDetail(this.id)
        console.log(res)
        this.form = res.data// 将数据反馈给我们的表单
      } catch (error) {
        console.log(error)
      }
    },
    // 编辑部门
    async doEdit() {
      try {
        const res = await editDepartments(this.form)
        console.log(res, 'doEdit')
        // 子传父，关闭弹窗与刷新
        this.$emit('success')
      } catch (error) {
        console.log(error)
      }
    },
    // 清空表单
    resetForm() {
      this.$refs.deptForm.resetFields()
    }

  }
}
</script>
